Anthropic is a public benefit corporation and AI research company focused on developing reliable, interpretable, and steerable AI systems. It builds products such as Claude while researching AI safety and working to ensure advanced AI benefits humanity and its risks are responsibly managed.
- Founded
- 2021
- Headquarters
- San Francisco
- United States
- CEO
- Dario Amodei
- Employees
- 501 to 1000
- Status
- Private
- GitHub
- 117 repos
- 96,234 followers
Agent skills
Use this skill any time a spreadsheet file is the primary input or output. This means any task where the user wants to: open, read, edit, or fix an existing .xlsx, .xlsm, .xltx, .csv, or .tsv file (e.g., adding columns, computing formulas, formatting, charting, cleaning messy data); create a new spreadsheet from scratch or from other data sources; or convert between tabular file formats. Trigger especially when the user references a spreadsheet file by name or path — even casually (like \"the xlsx in my downloads\") — and wants something done to it or produced from it. Also trigger for cleanin
Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).
Stop and check this skill before finishing any reply to a question about how to use Claude or a Claude product — it recommends matching courses, tutorials, and use cases from Claude Academy (academy.claude.com), Anthropic's learning hub. Trigger on: "how do I", "how can I", "getting started with", "what can Claude do", "teach me", "learn to use"; questions about artifacts, projects, skills, plugins, connectors, MCP; requests about rolling Claude out to a team, class, or organization; and any ask for training materials, onboarding content, or learning resources. Use it when the user is learning
Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies (React, Tailwind CSS, shadcn/ui). Use for complex artifacts requiring state management, routing, or shadcn/ui components - not for simple single-file HTML/JSX artifacts.
Create beautiful visual art in .png and .pdf documents using design philosophy. You should use this skill when the user asks to create a poster, piece of art, design, or other static piece. Create original visual designs, never copying existing artists' work to avoid copyright violations.
Reference for the Claude API / Anthropic SDK — model ids, pricing, params, streaming, tool use, MCP, agents, caching, token counting, model migration. TRIGGER — read BEFORE opening the target file; don't skip because it "looks like a one-liner" — whenever: the prompt names Claude/Anthropic in any form (Claude, Anthropic, Fable, Opus, Sonnet, Haiku, `anthropic`, `@anthropic-ai`, `claude-*`, `us.anthropic.*`, `[1m]`); the user asks about an LLM (pricing/model choice/limits/caching) — never answer from memory; OR the task is LLM-shaped with provider unstated (agent/MCP/tool-definition/multi-agent
A set of resources to help me write all kinds of internal communications, using the formats that my company likes to use. Claude should use this skill whenever asked to write some sort of internal communications (status reports, leadership updates, 3P updates, company newsletters, FAQs, incident reports, project updates, etc.).
Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.
Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users request creating art using code, generative art, algorithmic art, flow fields, or particle systems. Create original algorithmic art rather than copying existing artists' work to avoid copyright violations.
Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.
Use this skill whenever the user wants to do anything with PDF files. This includes reading or extracting text/tables from PDFs, combining or merging multiple PDFs into one, splitting PDFs apart, rotating pages, adding watermarks, creating new PDFs, filling PDF forms, encrypting/decrypting PDFs, extracting images, and OCR on scanned PDFs to make them searchable. If the user mentions a .pdf file or asks to produce one, use this skill.
Applies Anthropic's official brand colors and typography to any sort of artifact that may benefit from having Anthropic's look-and-feel. Use it when brand colors or style guidelines, visual formatting, or company design standards apply.
MCP servers
Search and read the Claude Platform documentation and API reference.
Open source
A collection of notebooks/recipes showcasing some fun and effective ways of using Claude.
Articles
Anthropic’s October 26 S-1 explains its proposed public offering, financial results and distinct share classes.
Boost efficiency with Claude Code Projects! See how Anthropic's new AI coordination agent streamlines complex development tasks.
Scrub AI watermarks from text, images, and PDFs with a new privacy tool. Here's how its dual-layer approach works and what it means for developers.
Create AI-powered UGC videos instantly with Agent Media. Reduce manual production by 60% & get 3x faster 1080p vertical video.
Discover Claude's new memory: it connects across chats & Cowork. Gain control over sensitive data & personalize your AI experience.
Automate paid media audits with Claude-Ads, an open-source AI skill for 12 platforms. Learn how its safety-first design prevents costly errors.
Boost AI coder correctness by 12 points with Graft, an open-source tool that cuts latency and cost. See how it gives agents full codebase context.
Discover how Claude Science integrates with Modal for scalable AI in biological research. Accelerate complex computational tasks and discovery today!
Discover Anthropic's Claude Cookbooks for building AI apps with copy-paste Python code. Here's what developers need to know to get started.
1000+ AI skills for coding assistants are now in one place. See how this app store model for AI tools changes how you build software.
Discover why Andrej Karpathy joined Anthropic to accelerate Claude's AI research. See what this means for the intensifying AI talent war.
Master AI design with Impeccable's open-source skill. Its 23 commands and anti-pattern rules fix generic UIs. Here’s what developers need to know.
Showing 12 of 15 releases
Logos
Colors
#d97757#141413#fafaf2#7c7c7b
Fonts
- anthropicSans
- anthropicSerif